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<?php
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/**
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* User Agent Library
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*
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* @author Zhou Yuan <yuanzhou19@gmail.com>
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* @link http://www.infopotato.com/
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* @copyright Copyright © 2009-2011 Zhou Yuan
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* @license http://www.opensource.org/licenses/mit-license.php MIT Licence
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*/
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class User_Agent_Library {
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/**
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* Contents of the User-Agent: header from the current request, if there is one.
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* A typical example is: Mozilla/4.5 [en] (X11; U; Linux 2.2.9 i586).
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*
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* @var string
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*/
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public $agent = NULL;
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/**
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* If the current request id from a browser
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*
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* @var boolean
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*/
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public $is_browser = FALSE;
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/**
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* If the current request id from a robot
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*
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* @var boolean
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*/
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public $is_robot = FALSE;
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/**
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* If the current request id from a mobile device
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*
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* @var boolean
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*/
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public $is_mobile = FALSE;
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/**
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* The accepted languages
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*
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* @var array
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*/
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public $languages = array();
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/**
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* The accepted Character Sets
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*
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* @var array
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*/
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public $charsets = array();
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/**
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* User agent platform information
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*
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* @var array
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*/
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public $platforms = array();
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/**
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* User agent browsers definitions
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*
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* @var array
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*/
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public $browsers = array();
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/**
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* User agent mobile definitions
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*
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* @var array
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*/
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public $mobiles = array();
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/**
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* User agent robots definitions
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*
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* @var integer
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*/
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public $robots = array();
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/**
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* Platform info
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*
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* @var string
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*/
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public $platform = '';
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/**
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* Browser name
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*
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* @var string
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*/
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public $browser = '';
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/**
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* Browser version
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*
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* @var string
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*/
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public $version = '';
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/**
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* Mobile name
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*
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* @var string
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*/
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public $mobile = '';
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/**
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* Robot name
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*
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* @var string
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*/
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public $robot = '';
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/**
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* Constructor
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*
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* Sets the User Agent and runs the compilation routine
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*
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* @return void
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*/
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public function __construct() {
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if (isset($_SERVER['HTTP_USER_AGENT'])) {
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$this->agent = trim($_SERVER['HTTP_USER_AGENT']);
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}
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if ( ! is_null($this->agent)) {
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$this->platforms = array (
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'windows nt 6.0' => 'Windows Longhorn',
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'windows nt 5.2' => 'Windows 2003',
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'windows nt 5.0' => 'Windows 2000',
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'windows nt 5.1' => 'Windows XP',
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'windows nt 4.0' => 'Windows NT 4.0',
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'winnt4.0' => 'Windows NT 4.0',
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'winnt 4.0' => 'Windows NT',
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'winnt' => 'Windows NT',
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'windows 98' => 'Windows 98',
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'win98' => 'Windows 98',
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'windows 95' => 'Windows 95',
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'win95' => 'Windows 95',
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'windows' => 'Unknown Windows OS',
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'os x' => 'Mac OS X',
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'ppc mac' => 'Power PC Mac',
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'freebsd' => 'FreeBSD',
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'ppc' => 'Macintosh',
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'linux' => 'Linux',
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'debian' => 'Debian',
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'sunos' => 'Sun Solaris',
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'beos' => 'BeOS',
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'apachebench' => 'ApacheBench',
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'aix' => 'AIX',
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'irix' => 'Irix',
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'osf' => 'DEC OSF',
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'hp-ux' => 'HP-UX',
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'netbsd' => 'NetBSD',
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'bsdi' => 'BSDi',
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'openbsd' => 'OpenBSD',
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'gnu' => 'GNU/Linux',
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'unix' => 'Unknown Unix OS'
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);
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// The order of this array should NOT be changed. Many browsers return
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// multiple browser types so we want to identify the sub-type first.
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$this->browsers = array(
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'Flock' => 'Flock',
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'Chrome' => 'Chrome',
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'Opera' => 'Opera',
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'MSIE' => 'Internet Explorer',
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'Internet Explorer' => 'Internet Explorer',
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'Shiira' => 'Shiira',
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'Firefox' => 'Firefox',
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'Chimera' => 'Chimera',
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'Phoenix' => 'Phoenix',
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'Firebird' => 'Firebird',
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'Camino' => 'Camino',
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'Netscape' => 'Netscape',
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'OmniWeb' => 'OmniWeb',
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'Safari' => 'Safari',
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'Mozilla' => 'Mozilla',
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'Konqueror' => 'Konqueror',
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'icab' => 'iCab',
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'Lynx' => 'Lynx',
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'Links' => 'Links',
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'hotjava' => 'HotJava',
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'amaya' => 'Amaya',
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'IBrowse' => 'IBrowse'
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);
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$this->mobiles = array(
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// legacy array, old values commented out
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'mobileexplorer' => 'Mobile Explorer',
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// 'openwave' => 'Open Wave',
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// 'opera mini' => 'Opera Mini',
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// 'operamini' => 'Opera Mini',
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// 'elaine' => 'Palm',
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'palmsource' => 'Palm',
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// 'digital paths' => 'Palm',
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// 'avantgo' => 'Avantgo',
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// 'xiino' => 'Xiino',
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'palmscape' => 'Palmscape',
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// 'nokia' => 'Nokia',
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// 'ericsson' => 'Ericsson',
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// 'blackberry' => 'BlackBerry',
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// 'motorola' => 'Motorola'
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// Phones and Manufacturers
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'motorola' => "Motorola",
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'nokia' => "Nokia",
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'palm' => "Palm",
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'iphone' => "Apple iPhone",
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'ipad' => "iPad",
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'ipod' => "Apple iPod Touch",
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'sony' => "Sony Ericsson",
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'ericsson' => "Sony Ericsson",
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'blackberry' => "BlackBerry",
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'cocoon' => "O2 Cocoon",
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'blazer' => "Treo",
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'lg' => "LG",
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'amoi' => "Amoi",
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'xda' => "XDA",
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'mda' => "MDA",
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'vario' => "Vario",
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'htc' => "HTC",
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'samsung' => "Samsung",
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'sharp' => "Sharp",
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'sie-' => "Siemens",
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'alcatel' => "Alcatel",
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'benq' => "BenQ",
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'ipaq' => "HP iPaq",
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'mot-' => "Motorola",
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'playstation portable' => "PlayStation Portable",
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'hiptop' => "Danger Hiptop",
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'nec-' => "NEC",
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'panasonic' => "Panasonic",
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'philips' => "Philips",
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'sagem' => "Sagem",
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'sanyo' => "Sanyo",
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'spv' => "SPV",
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'zte' => "ZTE",
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'sendo' => "Sendo",
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// Operating Systems
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'symbian' => "Symbian",
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'SymbianOS' => "SymbianOS",
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'elaine' => "Palm",
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'palm' => "Palm",
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'series60' => "Symbian S60",
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'windows ce' => "Windows CE",
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// Browsers
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'obigo' => "Obigo",
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'netfront' => "Netfront Browser",
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'openwave' => "Openwave Browser",
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'mobilexplorer' => "Mobile Explorer",
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'operamini' => "Opera Mini",
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'opera mini' => "Opera Mini",
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// Other
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'digital paths' => "Digital Paths",
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'avantgo' => "AvantGo",
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'xiino' => "Xiino",
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'novarra' => "Novarra Transcoder",
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'vodafone' => "Vodafone",
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'docomo' => "NTT DoCoMo",
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'o2' => "O2",
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// Fallback
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'mobile' => "Generic Mobile",
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'wireless' => "Generic Mobile",
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'j2me' => "Generic Mobile",
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'midp' => "Generic Mobile",
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'cldc' => "Generic Mobile",
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'up.link' => "Generic Mobile",
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'up.browser' => "Generic Mobile",
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'smartphone' => "Generic Mobile",
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'cellphone' => "Generic Mobile"
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);
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// There are hundreds of bots but these are the most common.
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$this->robots = array(
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'googlebot' => 'Googlebot',
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'msnbot' => 'MSNBot',
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'slurp' => 'Inktomi Slurp',
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'yahoo' => 'Yahoo',
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'askjeeves' => 'AskJeeves',
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'fastcrawler' => 'FastCrawler',
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'infoseek' => 'InfoSeek Robot 1.0',
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'lycos' => 'Lycos'
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);
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$this->_compile_data();
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}
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}
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/**
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* Compile the User Agent Data
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*
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* @return bool
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*/
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private function _compile_data() {
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// Set platform info
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$this->_set_platform();
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foreach (array('_set_browser', '_set_robot', '_set_mobile') as $function) {
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if ($this->$function() === TRUE) {
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break;
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}
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}
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}
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/**
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* Set the Platform
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*
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* @return mixed
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*/
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private function _set_platform() {
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foreach ($this->platforms as $key => $val) {
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if (preg_match("|".preg_quote($key)."|i", $this->agent)) {
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$this->platform = $val;
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return TRUE;
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}
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}
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$this->platform = 'Unknown Platform';
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}
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/**
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* Set the Browser
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*
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* @return bool
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*/
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private function _set_browser() {
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foreach ($this->browsers as $key => $val) {
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if (preg_match("|".preg_quote($key).".*?([0-9\.]+)|i", $this->agent, $match)) {
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$this->is_browser = TRUE;
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$this->version = $match[1];
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$this->browser = $val;
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$this->_set_mobile();
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return TRUE;
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}
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}
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return FALSE;
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}
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/**
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* Set the Robot
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*
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* @return bool
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*/
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private function _set_robot() {
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foreach ($this->robots as $key => $val) {
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if (preg_match("|".preg_quote($key)."|i", $this->agent)) {
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$this->is_robot = TRUE;
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$this->robot = $val;
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return TRUE;
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}
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}
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return FALSE;
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}
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/**
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* Set the Mobile Device
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*
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* @return bool
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*/
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private function _set_mobile() {
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foreach ($this->mobiles as $key => $val) {
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if (strpos(strtolower($this->agent), $key) !== FALSE) {
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$this->is_mobile = TRUE;
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$this->mobile = $val;
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return TRUE;
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}
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}
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return FALSE;
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}
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/**
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* Set the accepted languages
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*
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* @return void
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*/
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private function _set_languages() {
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if ((count($this->languages) == 0) && isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) && $_SERVER['HTTP_ACCEPT_LANGUAGE'] != '') {
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$languages = preg_replace('/(;q=[0-9\.]+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE'])));
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$this->languages = explode(',', $languages);
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}
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if (count($this->languages) == 0) {
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$this->languages = array('Undefined');
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}
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}
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/**
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* Set the accepted character sets
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*
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* @return void
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*/
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private function _set_charsets() {
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if ((count($this->charsets) == 0) && isset($_SERVER['HTTP_ACCEPT_CHARSET']) && $_SERVER['HTTP_ACCEPT_CHARSET'] != '') {
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$charsets = preg_replace('/(;q=.+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_CHARSET'])));
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$this->charsets = explode(',', $charsets);
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}
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if (count($this->charsets) == 0) {
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$this->charsets = array('Undefined');
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}
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}
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/**
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* Is Browser
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*
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* @return bool
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*/
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public function is_browser($key = NULL) {
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if ( ! $this->is_browser) {
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return FALSE;
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}
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// No need to be specific, it's a browser
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if ($key === NULL) {
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return TRUE;
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}
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// Check for a specific browser
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return array_key_exists($key, $this->browsers) && ($this->browser === $this->browsers[$key]);
438
}
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/**
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* Is Robot
443
*
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* @return bool
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*/
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public function is_robot($key = NULL) {
447
if ( ! $this->is_robot) {
448
return FALSE;
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}
450
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// No need to be specific, it's a robot
452
if ($key === NULL) {
453
return TRUE;
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}
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// Check for a specific robot
457
return array_key_exists($key, $this->robots) && ($this->robot === $this->robots[$key]);
458
}
459
460
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/**
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* Is Mobile
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*
464
* @return bool
465
*/
466
public function is_mobile($key = NULL) {
467
if ( ! $this->is_mobile) {
468
return FALSE;
469
}
470
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// No need to be specific, it's a mobile
472
if ($key === NULL) {
473
return TRUE;
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}
475
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// Check for a specific robot
477
return array_key_exists($key, $this->mobiles) && ($this->mobile === $this->mobiles[$key]);
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}
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480
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/**
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* Is this a referral from another site?
483
*
484
* @return bool
485
*/
486
public function is_referral() {
487
return ( ! isset($_SERVER['HTTP_REFERER']) || $_SERVER['HTTP_REFERER'] == '') ? FALSE : TRUE;
488
}
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490
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/**
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* Returns a string containing the full user agent string. Typically it will be something like this:
493
* Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.0.4) Gecko/20060613 Camino/1.0.2
494
*
495
* @return string
496
*/
497
public function agent_string() {
498
return $this->agent;
499
}
500
501
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/**
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* Get Platform
504
*
505
* @return string
506
*/
507
public function platform() {
508
return $this->platform;
509
}
510
511
512
/**
513
* Get Browser Name
514
*
515
* @return string
516
*/
517
public function browser() {
518
return $this->browser;
519
}
520
521
522
/**
523
* Get the Browser Version
524
*
525
* @return string
526
*/
527
public function version() {
528
return $this->version;
529
}
530
531
532
/**
533
* Get The Robot Name
534
*
535
* @return string
536
*/
537
public function robot() {
538
return $this->robot;
539
}
540
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/**
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* Get the Mobile Device
543
*
544
* @return string
545
*/
546
public function mobile() {
547
return $this->mobile;
548
}
549
550
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/**
552
* Get the referrer
553
*
554
* @return bool
555
*/
556
public function referrer() {
557
return ( ! isset($_SERVER['HTTP_REFERER']) || $_SERVER['HTTP_REFERER'] == '') ? '' : trim($_SERVER['HTTP_REFERER']);
558
}
559
560
561
/**
562
* Get the accepted languages
563
*
564
* @return array
565
*/
566
public function languages() {
567
if (count($this->languages) == 0) {
568
$this->_set_languages();
569
}
570
571
return $this->languages;
572
}
573
574
575
/**
576
* Get the accepted Character Sets
577
*
578
* @return array
579
*/
580
public function charsets() {
581
if (count($this->charsets) == 0) {
582
$this->_set_charsets();
583
}
584
585
return $this->charsets;
586
}
587
588
589
/**
590
* Test for a particular language
591
*
592
* @return bool
593
*/
594
public function accept_lang($lang = 'en') {
595
return (in_array(strtolower($lang), $this->languages(), TRUE)) ? TRUE : FALSE;
596
}
597
598
599
/**
600
* Test for a particular character set
601
*
602
* @return bool
603
*/
604
public function accept_charset($charset = 'utf-8') {
605
return (in_array(strtolower($charset), $this->charsets(), TRUE)) ? TRUE : FALSE;
606
}
607
608
}
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/* End of file: ./system/libraries/user_agent/user_agent_library.php */
Page URI: http://www.infopotato.com/index.php/code/library/user_agent/